<HTML><HEAD><TITLE>is_solver_type(?Term)</TITLE>
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<H1>is_solver_type(?Term)</H1>
Succeeds if Term is a ground set or a set variable
<DL>
<DT><EM>Term</EM></DT>
<DD>A term
</DD>
</DL>
<H2>Description</H2>
<P>
    Succeeds if Term is either a set (represented as a list) or a set
    variable. For efficiency reasons, lists are not checked for being
    valid set representations (i.e. strictly sorted lists of integers),
    the predicate succeeds for any list.
</P>
<H3>Fail Conditions</H3>
Set is neither a set nor a set variable

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